PM 2.5

Air quality index [µg/m³]:

excellent ≤ 12

good ≤ 36

lightly polluted ≤ 60

moderately polluted ≤ 84

heavily polluted ≤ 120

severely polluted > 120

PM 2.5

[µg/m³]

HOUR	OPOLSKA ST.		ROOF (BEFORE FILTERS)			AIR SUPPLIED TO OFFICES
09⁰⁰	106	heavily polluted	good	25	⇨	1	excellent
08⁰⁰	106	heavily polluted	good	24	⇨	1	excellent
07⁰⁰	119	heavily polluted	good	26	⇨	1	excellent
06⁰⁰	117	heavily polluted	good	24	⇨	1	excellent
05⁰⁰	104	heavily polluted	good	21	⇨	1	excellent
04⁰⁰	105	heavily polluted	good	21	⇨	1	excellent
03⁰⁰	108	heavily polluted	good	22	⇨	1	excellent
02⁰⁰	114	heavily polluted	good	27	⇨	1	excellent
01⁰⁰	124	severely polluted	good	23	⇨	1	excellent
00⁰⁰	128	severely polluted	good	26	⇨	1	excellent
23⁰⁰	145	severely polluted	good	31	⇨	1	excellent
22⁰⁰	148	severely polluted	good	30	⇨	1	excellent
21⁰⁰	170	severely polluted	good	33	⇨	1	excellent
20⁰⁰	164	severely polluted	good	33	⇨	1	excellent
19⁰⁰	142	severely polluted	good	29	⇨	1	excellent
18⁰⁰	164	severely polluted	lightly polluted	37	⇨	1	excellent
17⁰⁰	186	severely polluted	lightly polluted	40	⇨	1	excellent
16⁰⁰	158	severely polluted	good	36	⇨	1	excellent
15⁰⁰	160	severely polluted	lightly polluted	37	⇨	1	excellent
14⁰⁰	153	severely polluted	lightly polluted	38	⇨	1	excellent
13⁰⁰	149	severely polluted	good	35	⇨	1	excellent
12⁰⁰	141	severely polluted	good	33	⇨	1	excellent
11⁰⁰	125	severely polluted	good	28	⇨	1	excellent
10⁰⁰	105	heavily polluted	good	24	⇨	1	excellent